Fastener Guide / Technical Reference

ASTM F837 Stainless Socket Cap Screws

F837 is the stainless socket head cap screw specification. Its strengths are stainless conditions, far below alloy A574 or class 12.9.

Last reviewed 2026-09-10 · Governing standard: ASTM F837-20; ASTM A574-21; ISO 3506-1/-2:2020 · reference FG-BA3443 · Report an error on this sheet

Stainless vs alloy socket head cap screws

ASTM F837 stainlessASTM A574 alloy
Material300-series stainless (group per F837)Alloy steel, Q&T
TensileDepends on group and condition; well below A574180 ksi to 1/2 in, 170 ksi above
CorrosionGoodPoor unless coated

These tables carry the same figures as the printed sheet below.

The printed sheet

ASTM F837 Stainless Socket Cap Screws

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Text version of this sheet

ASTM F837 · stainless steel socket head cap screws

What it is

FIELD IDENTIFICATION

F837 is the stainless socket head cap screw specification. Its strengths are stainless conditions, far

below alloy A574 or class 12.9.

F837*

Stainless socket head cap screw; marking

depends on alloy/condition

Stainless vs alloy socket head cap screws

ASTM F837 stainless

ASTM A574 alloy

Material

300-series stainless (group per F837)

Alloy steel, Q&T

Tensile

Depends on group and condition; well below A574

180 ksi to 1/2 in, 170 ksi above

Corrosion

Good

Poor unless coated

Key points

Black oxide does not make a stainless screw alloy, or the reverse.

Governing standards: ASTM F837-20; ASTM A574-21; ISO 3506-1/-2:2020. Editions shown are the latest confirmed as of September 2026. The drawing and the governing standard

always take precedence over this sheet.

torquing any fastener. Verify the current governing standard, project documents, OEM requirements, size, thread, coating and lot certification. To the fullest extent permitted by law, The Fastener App disclaims liability

arising from reliance on this reference.

Fastener Guide reference FG-BA3443 · thefastenerapp.com/fastener-guide/technical-reference/astm-f837-stainless-socket-cap-screws · © The Fastener App. Reference only — verify the current governing standard, drawing and manufacturer data before specifying or installing.

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